CbC/CbC_gcc: gcc/config/m68k/linux.h comparison

comparison gcc/config/m68k/linux.h @ 0:a06113de4d67

first commit

author	kent <kent@cr.ie.u-ryukyu.ac.jp>
date	Fri, 17 Jul 2009 14:47:48 +0900
parents
children	77e2b8dfacca

comparison

equal deleted inserted replaced

--1:000000000000
+:a06113de4d67
+/* Definitions for Motorola 68k running Linux-based GNU systems with
+ELF format.
+Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006,
+2007 Free Software Foundation, Inc.
+This file is part of GCC.
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (68k GNU/Linux with ELF)");
+/* Add %(asm_cpu_spec) to the svr4.h definition of ASM_SPEC.  */
+#undef ASM_SPEC
+#define ASM_SPEC "%(asm_cpu_spec) %(asm_pcrel_spec) \
+%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*}"
+#undef PREFERRED_STACK_BOUNDARY
+#define PREFERRED_STACK_BOUNDARY 32
+/* for 68k machines this only needs to be TRUE for the 68000 */
+#undef STRICT_ALIGNMENT
+#define STRICT_ALIGNMENT 0
+#undef M68K_HONOR_TARGET_STRICT_ALIGNMENT
+#define M68K_HONOR_TARGET_STRICT_ALIGNMENT 0
+/* Here are four prefixes that are used by asm_fprintf to
+facilitate customization for alternate assembler syntaxes.
+Machines with no likelihood of an alternate syntax need not
+define these and need not use asm_fprintf.  */
+/* The prefix for register names.  Note that REGISTER_NAMES
+is supposed to include this prefix. Also note that this is NOT an
+fprintf format string, it is a literal string */
+#undef REGISTER_PREFIX
+#define REGISTER_PREFIX "%"
+/* The prefix for local (compiler generated) labels.
+These labels will not appear in the symbol table.  */
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+/* The prefix to add to user-visible assembler symbols.  */
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+#define ASM_COMMENT_START "|"
+/* Target OS builtins.  */
+#define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
+#undef CPP_SPEC
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+/* Provide a LINK_SPEC appropriate for GNU/Linux.  Here we provide support
+for the special GCC options -static and -shared, which allow us to
+link things in one of these three modes by applying the appropriate
+combinations of options at link-time.  We like to support here for
+as many of the other GNU linker options as possible.  But I don't
+have the time to search for those flags.  I am sure how to add
+support for -soname shared_object_name. H.J.
+I took out %{v:%{!V:-V}}.  It is too much :-(.  They can use
+-Wl,-V.
+When the -shared link option is used a final link is not being
+done.  */
+/* If ELF is the default format, we should not use /lib/elf.  */
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+#undef LINK_SPEC
+#define LINK_SPEC "-m m68kelf %{shared} \
+%{!shared: \
+%{!static: \
+%{rdynamic:-export-dynamic} \
+%{!dynamic-linker*:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
+%{static}}"
+/* For compatibility with linux/a.out */
+#undef PCC_BITFIELD_TYPE_MATTERS
+/* Currently, JUMP_TABLES_IN_TEXT_SECTION must be defined in order to
+keep switch tables in the text section.  */
+#define JUMP_TABLES_IN_TEXT_SECTION 1
+/* Use the default action for outputting the case label.  */
+#undef ASM_OUTPUT_CASE_LABEL
+#define ASM_RETURN_CASE_JUMP				\
+do {							\
+if (TARGET_COLDFIRE)				\
+{							\
+	if (ADDRESS_REG_P (operands[0]))		\
+	  return "jmp %%pc@(2,%0:l)";			\
+	else						\
+	  return "ext%.l %0\n\tjmp %%pc@(2,%0:l)";	\
+}							\
+else						\
+return "jmp %%pc@(2,%0:w)";			\
+} while (0)
+/* This is how to output an assembler line that says to advance the
+location counter to a multiple of 2**LOG bytes.  */
+#undef ASM_OUTPUT_ALIGN
+#define ASM_OUTPUT_ALIGN(FILE,LOG)				\
+if ((LOG) > 0)						\
+fprintf ((FILE), "%s%u\n", ALIGN_ASM_OP, 1 << (LOG));
+#ifdef HAVE_GAS_BALIGN_AND_P2ALIGN
+/* Use "move.l %a4,%a4" to advance within code.  */
+#define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG)			\
+if ((LOG) > 0)						\
+fprintf ((FILE), "\t.balignw %u,0x284c\n", 1 << (LOG));
+#endif
+/* If defined, a C expression whose value is a string containing the
+assembler operation to identify the following data as uninitialized global
+data.  */
+#define BSS_SECTION_ASM_OP "\t.section\t.bss"
+/* A C statement (sans semicolon) to output to the stdio stream
+FILE the assembler definition of uninitialized global DECL named
+NAME whose size is SIZE bytes and alignment is ALIGN bytes.
+Try to use asm_output_aligned_bss to implement this macro.  */
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+/* Output assembler code to FILE to increment profiler label # LABELNO
+for profiling a function entry.  */
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE, LABELNO) \
+{									\
+asm_fprintf (FILE, "\tlea (%LLP%d,%Rpc),%Ra1\n", (LABELNO));		\
+if (flag_pic)								\
+fprintf (FILE, "\tbsr.l _mcount@PLTPC\n");				\
+else									\
+fprintf (FILE, "\tjbsr _mcount\n");					\
+}
+/* Do not break .stabs pseudos into continuations.  */
+#define DBX_CONTIN_LENGTH 0
+/* 1 if N is a possible register number for a function value.  For
+m68k/SVR4 allow d0, a0, or fp0 as return registers, for integral,
+pointer, or floating types, respectively.  Reject fp0 if not using
+a 68881 coprocessor.  */
+#undef FUNCTION_VALUE_REGNO_P
+#define FUNCTION_VALUE_REGNO_P(N) \
+((N) == D0_REG || (N) == A0_REG || (TARGET_68881 && (N) == FP0_REG))
+/* Define this to be true when FUNCTION_VALUE_REGNO_P is true for
+more than one register.  */
+#undef NEEDS_UNTYPED_CALL
+#define NEEDS_UNTYPED_CALL 1
+/* Define how to generate (in the callee) the output value of a
+function and how to find (in the caller) the value returned by a
+function.  VALTYPE is the data type of the value (as a tree).  If
+the precise function being called is known, FUNC is its
+FUNCTION_DECL; otherwise, FUNC is 0.  For m68k/SVR4 generate the
+result in d0, a0, or fp0 as appropriate.  */
+#undef FUNCTION_VALUE
+#define FUNCTION_VALUE(VALTYPE, FUNC)					\
+m68k_function_value (VALTYPE, FUNC)
+/* Define how to find the value returned by a library function
+assuming the value has mode MODE.
+For m68k/SVR4 look for integer values in d0, pointer values in d0
+(returned in both d0 and a0), and floating values in fp0.  */
+#undef LIBCALL_VALUE
+#define LIBCALL_VALUE(MODE)						\
+m68k_libcall_value (MODE)
+/* For m68k SVR4, structures are returned using the reentrant
+technique.  */
+#undef PCC_STATIC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 0
+/* Finalize the trampoline by flushing the insn cache.  */
+#undef FINALIZE_TRAMPOLINE
+#define FINALIZE_TRAMPOLINE(TRAMP)					\
+emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__clear_cache"),	\
+		     0, VOIDmode, 2, TRAMP, Pmode,			\
+		     plus_constant (TRAMP, TRAMPOLINE_SIZE), Pmode);
+/* Clear the instruction cache from `beg' to `end'.  This makes an
+inline system call to SYS_cacheflush.  The arguments are as
+follows:
+	cacheflush (addr, scope, cache, len)
+addr	  - the start address for the flush
+scope  - the scope of the flush (see the cpush insn)
+cache  - which cache to flush (see the cpush insn)
+len    - a factor relating to the number of flushes to perform:
+	    len/16 lines, or len/4096 pages.  */
+#define CLEAR_INSN_CACHE(BEG, END)					\
+{									\
+register unsigned long _beg __asm ("%d1") = (unsigned long) (BEG);	\
+unsigned long _end = (unsigned long) (END);				\
+register unsigned long _len __asm ("%d4") = (_end - _beg + 32);	\
+__asm __volatile							\
+("move%.l #123, %/d0\n\t"	/* system call nr */			\
+"move%.l #1, %/d2\n\t"	/* clear lines */			\
+"move%.l #3, %/d3\n\t"	/* insn+data caches */			\
+"trap #0"								\
+: /* no outputs */							\
+: "d" (_beg), "d" (_len)						\
+: "%d0", "%d2", "%d3");						\
+}
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+#define MD_UNWIND_SUPPORT "config/m68k/linux-unwind.h"

Mercurial > hg > CbC > CbC_gcc

comparison gcc/config/m68k/linux.h @ 0:a06113de4d67